there is nothing but a card in the box,( )there?应填is 还是isn't说明理由

分类: 作业答案 • 2021-12-19 11:48:51

问题描述：

there is nothing but a card in the box,( )there?
应填is 还是isn't说明理由

答

is,nothing已经为否定,前否后肯,前肯后否.很容易记的- -

答

is
语法书上有

答

is
因为前面有NOTHING 是个否定词

答

is
反意疑问句，前否后肯，或前否后肯
这个就属于前否后肯